Finding the Length of a Side in a Triangle

Consider a triangle ABC, where angle A measures 60 degrees, and the lengths of sides AB and AC are both equal to 5 units. To find the length of side BC, apply the Law of Cosines, which states:

The formula is given by:

$BC^2 = AB^2 + AC^2 - 2(AB)(AC) \cdot \cos(A)$

Using the information provided, calculate the length of side BC.